How do you create aligned interactive text boxs in a PDF with the same width and height?
Without free hand creating the sizing?
Assuming by "interactive text boxes" you mean form fields; in Acrobat, make a form field, then copy it and paste. (GIve the pasted copy a different name so they don't genetate the same field feedback.) Now you have two fields of the exact same size. Shift-click or marquee-drag to select both, then right-click and choose a command from the Align, Distribute or Center menu.